Which of the following phrases best matches the word adaptation? [9a-1]

an evolved characteristic of an organism that helps it survive in its habitat

to form the next generation in an organism population

the differences that naturally occur in an organism population due to different gene combinations

a change in the genetic information before the next generation is produced

Which of the following phrases best matches the word reproduction? [9a-2]

an evolved characteristic of an organism that helps it survive in its habitat

to form the next generation in an organism population

the differences that naturally occur in an organism population due to different gene combinations

a change in the genetic information before the next generation is produced

Which of the following phrases best matches the word variation? [9a-3]

an evolved characteristic of an organism that helps it survive in its habitat

to form the next generation in an organism population

the differences that naturally occur in an organism population due to different gene combinations

a change in the genetic information before the next generation is produced

Which of the following phrases best matches the word mutation? [9a-4]

an evolved characteristic of an organism that helps it survive in its habitat

to form the next generation in an organism population

the differences that naturally occur in an organism population due to different gene combinations

a change in the genetic information before the next generation is produced

Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to whether you have freckles? [9a-5]

only what is genetically inherited from your parents genes

only environmental factors

a combination of genetic and environmental factors

nothing to do with genetic or environmental factors

Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to your taste in music? [9a-6]

only what is genetically inherited from your parents genes

only environmental factors

a combination of genetic and environmental factors

nothing to do with genetic or environmental factors

Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to your musical ability? [9a-7]

only what is genetically inherited from your parents genes

only environmental factors

a combination of genetic and environmental factors

nothing to do with genetic or environmental factors

Your physical features and activities are the result of several factors. You can genetically inherit characteristics from your parents genes or they can be due to your 'environment' e.g. 'habitat' and 'life style'. Which of the following factors applies to your sporting ability? [9a-8]

only what is genetically inherited from your parents genes

only environmental factors

nothing to do with genetic or environmental factors

a combination of genetic and environmental factors

You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Which of the following words corresponds to __(1)__? [9a-9]

characteristics

genes

nucleus

cells

eggs

sperm

You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Which of the following words corresponds to __(2)__? [9a-10]

characteristics

genes

nucleus

cells

eggs

sperm

You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Which of the following words corresponds to __(3)__? [9a-11]

characteristics

genes

nucleus

cells

eggs

sperm

You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Which of the following words corresponds to __(4)__? [9a-12]

characteristics

genes

nucleus

cells

eggs

sperm

You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Which of the following words corresponds to __(5)__? [9a-13]

characteristics

genes

nucleus

cells

eggs

sperm

You get your __(1)__ from your parents __(2)__ which are contained in the __(3)__ of __(4)__. The female's genes are passed on in the __(5)__ and the male genes are passed on in the __(6)__.

Which of the following words corresponds to __(6)__? [9a-14]

characteristics

genes

nucleus

cells

eggs

sperm

The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants flower colour? [9a-15]

only what is genetically inherited from your parents genes

a combination of genetic and environmental factors

only environmental factors

nothing to do with genetic or environmental factors

The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants height? [9a-16]

only what is genetically inherited from your parents genes

a combination of genetic and environmental factors

only environmental factors

nothing to do with genetic or environmental factors

The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants leaf shape? [9a-17]

only environmental factors

nothing to do with genetic or environmental factors

only what is genetically inherited from your parents genes

a combination of genetic and environmental factors

The physical features of plants are the result of several factors. They can genetically inherit characteristics from the parent seeds or they can be due to 'environmental' factors e.g. rainfall or soil fertility. Which of the following factors applies to a plants number of branches and leaves? [9a-18]

only environmental factors

nothing to do with genetic or environmental factors

only what is genetically inherited from your parents genes

a combination of genetic and environmental factors

Which of the phrases best matches the phrase selective breeding? [9a-19]

choosing characteristics you want to modify in the offspring by natural methods

the 'blueprint' for the characteristics of offspring

altering the information in genes before reproducing the organism

the greater survival of the organisms best adapted to their habitat or environment

Which of the phrases best matches the phrase genetic information? [9a-20]

choosing characteristics you want to modify in the offspring by natural breeding

the 'blueprint' for the characteristics of offspring

altering the information in genes before reproducing the organism

the greater survival of the organisms best adapted to their habitat or environment

Which of the phrases best matches the phrase genetic modification? [9a-21]

choosing characteristics you want to modify in the offspring by natural breeding

the 'blueprint' for the characteristics of offspring

altering the information in genes before reproducing the organism

the greater survival of the organisms best adapted to their habitat or environment

Which of the phrases best matches the phrase natural selection? [9a-22]

choosing characteristics you want to modify in the offspring by natural breeding

the 'blueprint' for the characteristics of offspring

altering the information in genes before reproducing the organism

the greater survival of the organisms best adapted to their habitat or environment

Which of the following words best completes the sentence .....

The colour of a cats coat is __?__ from its parents. [9a-23]

inherited

selected

modified

cloned

adapted

mutated

Which of the following words best completes the sentence .....

A characteristic of an animal can be __?__ by cross breeding animals with the desired characteristic. [9a-24]

inherited

selected

stored

cloned

adapted

mutated

Which of the following words best completes the sentence .....

Genetic information can be deliberately __?__ in the laboratory to change the characteristics of an organism. [9a-25]

inherited

stored

modified

cloned

adapted

mutated

Which of the following words best completes the sentence .....

When an animal egg cell is developed by only using genetic material from the mother, the resulting identical offspring are described as being __?__ from the mother. [9a-26]

inherited

selected

modified

cloned

adapted

mutated

Which of the following words best completes the sentence .....

When, through evolution, an organism has developed a characteristic that helps it survive in its habitat, it is said to be __?__ to its environment. [9a-27]

inherited

stored

modified

cloned

adapted

mutated

Which of the following words best completes the sentence .....

Radioactivity or chemicals can cause a cell to be __?__ and so 'accidently', and usually harmfully, changing the information in the genes. [9a-28]

inherited

selected

modified

cloned

adapted

mutated

Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Which of the following words corresponds to __(1)__? [9a-29]

similar

identical

characteristics

inherited

variations

mutations

Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Which of the following words corresponds to __(2)__? [9a-30]

similar

identical

characteristics

inherited

variations

mutations

Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Which of the following words corresponds to __(3)__? [9a-31]

similar

identical

characteristics

inherited

variations

mutations

Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Which of the following words corresponds to __(4)__? [9a-32]

similar

identical

characteristics

inherited

variations

mutations

Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

Which of the following words corresponds to __(5)__? [9a-33]

similar

identical

characteristics

inherited

variations

mutations

Offspring are __(1)__ but not __(2)__ to their parents. Some __(3)__ are __(4)__ from their genes, but, in both plants and animals, __(5)__ occur due to __(6)__ and different gene combinations.

In mammalian sexual reproduction, which cell contains the genetic information from the female? [9a-37]

cell 3

cell 6

cell 4

cell 5

In mammalian sexual reproduction, which cell contains the genetic information from the male? [9a-38]

cell 3

cell 6

cell 4

cell 5

Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Which of the following words corresponds to __(1)__? [9a-39]

nuclei

genes

generation

fertilisation

information

combined

Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Which of the following words corresponds to __(2)__? [9a-40]

nuclei

genes

generation

fertilisation

information

combined

Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Which of the following words corresponds to __(3)__? [9a-41]

nuclei

genes

generation

fertilisation

information

combined

Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Which of the following words corresponds to __(4)__? [9a-42]

nuclei

genes

generation

fertilisation

information

combined

Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Which of the following words corresponds to __(5)__? [9a-43]

nuclei

genes

generation

fertilisation

information

combined

Most cells have __(1)__ which contain __(2)__ that transfer molecular instructions from one __(3)__ to the next. In __(4)__ the genetic __(5)__ from the parents is __(6)__.

Which of the following words corresponds to __(6)__? [9a-44]

nuclei

genes

generation

fertilisation

information

combined

The tendency to form freckles in sunlight is genetically inherited. If Molly and Mark have freckles who might you predict to also have freckles in the 3rd generation? [9a-45]

Joey or Selena

only Joey

only Selena

neither Joey nor Selena

The tendency to form freckles in sunlight is genetically inherited. If only Phil has freckles in the 1st generation and only Joey in the 3rd generation who is most likely to have freckles in the 2nd generation? [9a-46]

Tom

Mark

Sue

Ros

The tendency to form freckles in sunlight is genetically inherited. If only Fred and Sue have freckles in the first two generations, who is most likely to have freckles in the 3rd generation? [9a-47]

only Joey

only Selena

Joey or Selena

neither Joey nor Selena

The tendency to form freckles in sunlight is genetically inherited. If Fred and Selena have freckles, who is most likely to have freckles too? [9a-48]

Tom

Mark

Phil

Sue

Kate and Kim are identical twins.One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.Which of the following applies to the heart beating normally? [9a-49]

Kate only

Kim only

Kate and Kim

neither Kate nor Kim

Kate and Kim are identical twins.One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.Which of the following applies to a fast reathing rate? [9a-50]

Kate only

Kim only

Kate and Kim

neither Kate nor Kim

Kate and Kim are identical twins.One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.Which of the following applies to having black hair? [9a-51]

Kate only

Kim only

Kate and Kim

neither Kate nor Kim

Kate and Kim are identical twins.One afternoon, Kate prefers reading a book, but Kim prefers to go for a bike ride.Which of the following applies to having brown eyes? [9a-52]

Kate only

Kim only

neither Kate nor Kim

Kate and Kim

Which of the following is NOT true? [9a-53]

genetic information is stored in the cell cytoplasm

identical twins are formed from a fertilised egg that divides into two complete cells

fertilisation is when the nuclei of the egg cell and sperm combine

non-identical twins grow from separately fertilised eggs

Which of the following is NOT true? [9a-54]

genetic information is stored in the cell nucleus

identical twins are formed from two identical fertilised eggs

fertilisation is when the nuclei of the egg cell and sperm combine

non-identical twins grow from separately fertilised eggs

Which of the following is NOT true? [9a-55]

genetic information is stored in the cell nucleus

identical twins are formed from a fertilised egg that divides into two complete cells

fertilisation is when the cytoplasm of the egg cell and sperm combine

non-identical twins grow from separately fertilised eggs

Which of the following is NOT true? [9a-56]

genetic information is stored in the cell nucleus

identical twins are formed from a fertilised egg that divides into two complete cells

fertilisation is when the nuclei of the egg cell and sperm combine

non-identical twins grow from the same fertilised egg

Which of the following is NOT true? [9a-57]

offspring get their genetic information from only the sperm cell

non-identical twins are likely to have a lot of similar inherited characteristics

different lifestyles will result in physical differences between identical twins

brothers and sisters do not inherit exactly the same genetic information

Which of the following is NOT true? [9a-58]

offspring get their genetic information from both the sperm and egg cells

non-identical twins are unlikely to have a lot of similar inherited characteristics

different lifestyles will result in physical differences between identical twins

brothers and sisters do not inherit exactly the same genetic information

Which of the following is NOT true? [9a-59]

offspring get their genetic information from both the sperm and egg cells

non-identical twins are likely to have a lot of similar inherited characteristics

different lifestyles will not result in physical differences between identical twins

brothers and sisters do not inherit exactly the same genetic information

Which of the following is NOT true? [9a-60]

offspring get their genetic information from both the sperm and egg cells

non-identical twins are likely to have a lot of similar inherited characteristics

different lifestyles will result in physical differences between identical twins

brothers and sisters inherit exactly the same genetic information

The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals.

Which word is missing from __(1)__? [9a-61]

fusion (combination)

individual

unique

fertilisation

similar

The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals.

Which word is missing from __(2)__? [9a-62]

fusion (combination)

individual

unique

fertilisation

similar

The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals.

Which word is missing from __(3)__? [9a-63]

fusion (combination)

individual

unique

fertilisation

similar

The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals.

Which word is missing from __(4)__? [9a-64]

fusion (combination)

individual

unique

fertilisation

similar

The __(1)__ of male and female sex-cell nuclei produces a new __(2)__ that is genetically __(3)__. This sexual __(4)__ process is __(5)__ in plants and animals.

Which word is missing from __(5)__? [9a-65]

fusion (combination)

individual

unique

fertilisation

similar

Which word best matches the phrase ...

slows down the brain and makes you feel sleepy or more relaxed? [9b-1]

sedative

stimulant

hallucinogen

analgesic

vaccine

antibiotic

antiseptic

Which word best matches the phrase ...

speeds up your brain and makes you more active? [9b-2]

sedative

stimulant

hallucinogen

analgesic

vaccine

antibiotic

antiseptic

Which word best matches the phrase ...

gives you experiences that are not 'real'? [9b-3]

sedative

stimulant

hallucinogen

analgesic

vaccine

antibiotic

antiseptic

Which word best matches the phrase ...

reduces the feelings of pain? [9b-4]

sedative

stimulant

hallucinogen

analgesic

vaccine

antibiotic

antiseptic

Which word best matches the phrase ...

immunises you against certain infectious diseases? [9b-5]

sedative

stimulant

hallucinogen

analgesic

vaccine

antibiotic

antiseptic

Which word best matches the phrase ...

a chemical taken internally to kill bacteria infections? [9b-6]

sedative

stimulant

hallucinogen

analgesic

vaccine

antibiotic

antiseptic

Which word best matches the phrase ...

a chemical that can be applied externally to the skin to kill bacteria? [9b-7]

Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-21]

to raise your arm the biceps contract and the triceps contract

to lower or straighten your arm the biceps relax and the triceps contract

calcium in the diet is essential for healthy bone structure

protein in the diet is essential for healthy muscle structure

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-22]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps contract and the triceps contract

calcium in the diet is essential for healthy bone structure

protein in the diet is essential for healthy muscle structure

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-23]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps relax and the triceps contract

sodium in the diet is essential for healthy bone structure

protein in the diet is essential for healthy muscle structure

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-24]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps relax and the triceps contract

calcium in the diet is essential for healthy bone structure

vegetable fibre in the diet is essential for healthy muscle structure

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-25]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps relax and the triceps contract

calcium in the diet is essential for healthy bone structure

protein in the diet is essential for healthy muscle structure

cartilage is a harder material between the bones of a joint and acts as a binding agent to minimise the chance of fracture damage

cartilage is a softer material between the bones of a joint and reduces friction that would cause pain and wear

Which of the following is NOT true about the function and nutrition of your bone and muscle system? [9b-26]

to raise your arm the biceps contract and the triceps relax

to lower or straighten your arm the biceps relax and the triceps contract

calcium in the diet is essential for healthy bone structure

protein in the diet is essential for healthy muscle structure

cartilage is a softer material between the bones of a joint and acts as a shock absorber to minimise the chance of fracture damage

cartilage is a harder material between the bones of a joint and increases friction to reduce pain and wear

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best completes the phrase your arm is acting as a __?__ to lift an object? [9b-27]

lever

pivot or fulcrum

moment

newton

force

newton metre

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the point where the humerus and ulna bones are linked? [9b-28]

lever

pivot or fulcrum

moment

newton

force

newton metre

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the weight of a lifted object x the length of your arm? [9b-29]

lever

a pivot or fulcrum

moment

newton

force

newton metre

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the unit of any weight you lift? [9b-30]

lever

pivot or fulcrum

moment

newton

force

newton metre

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase produced by any push or pull of your arm? [9b-31]

lever

pivot or fulcrum

moment

newton

force

newton metre

The bones and muscles of your skeleton are a mechanical system to do various physical tasks e.g. lifting, walking etc. Which word(s) best matches the phrase the units of the effect of a turning force? (e.g. as you bend your arm to lift something) [9b-32]

lever

pivot or fulcrum

moment

newton

force

newton metre

Which of the following is NOT true about drinking alcoholic beverages? [9b-33]

a little alcohol can cause serious liver damage

harmful alcohol can reach an unborn baby through the placenta

alcoholic drinks tend to slow down your reactions

alcohol is rapidly absorbed into your bloodstream from the stomach

Which of the following is NOT true about drinking alcoholic beverages? [9b-34]

too much alcohol can cause serious liver damage

alcohol cannot reach an unborn baby through the placenta

alcoholic drinks tend to slow down your reactions

alcohol is rapidly absorbed into your bloodstream from the stomach

Which of the following is NOT true about drinking alcoholic beverages? [9b-35]

too much alcohol can cause serious liver damage

harmful alcohol can reach an unborn baby through the placenta

alcoholic drinks tend to speed up your reactions

alcohol is rapidly absorbed into your bloodstream from the stomach

Which of the following is NOT true about drinking alcoholic beverages? [9b-36]

too much alcohol can cause serious liver damage

harmful alcohol can reach an unborn baby through the placenta

alcoholic drinks tend to slow down your reactions

alcohol is only slowly absorbed into your bloodstream from the stomach

Which of the following is NOT true about smoking? [9b-37]

nicotine is not an addictive substance in tobacco tar or smoke

breathing in other smokers smoke can be harmful

smokers have harmful carbon monoxide in their bloodstream

tobacco tar and smoke both contain carcinogens

Which of the following is NOT true about smoking? [9b-38]

nicotine is an addictive substance in tobacco tar or smoke

breathing in other smokers smoke is not particularly harmful

smokers have harmful carbon monoxide in their bloodstream

tobacco tar and smoke both contain carcinogens

Which of the following is NOT true about smoking? [9b-39]

nicotine is an addictive substance in tobacco tar or smoke

breathing in other smokers smoke can be harmful

smokers have extra harmful carbon dioxide in their bloodstream

tobacco tar and smoke both contain carcinogens

Which of the following is NOT true about smoking? [9b-40]

nicotine is an addictive substance in tobacco tar or smoke

breathing in other smokers smoke can be harmful

smokers have harmful carbon monoxide in their bloodstream

neither tobacco tar or smoke contain carcinogens

Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-41]

more fat

less carbohydrate

more protein

less salt

more flavouring

Which of the following changes is most likely to make snack foods like crisps give you more energy? [9b-42]

less fat

more carbohydrate

more protein

less salt

more flavouring

Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-43]

less fat

less carbohydrate

less protein

less salt

more flavouring

Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-44]

less fat

less carbohydrate

more protein

more salt

more flavouring

Which of the following changes is most likely to make snack foods like crisps less nutritious? [9b-45]

less fat

less carbohydrate

more protein

less salt

more flavouring

The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-46]

Tony can run at a faster speed than Mark.

Tony is not as fit as Mark.

in a race Mark is more likely to win.

Tony is more likely than Mark, to become breathless sooner, in a short sprint.

The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-47]

Mark can run at a faster speed than Tony.

Tony is fitter than Mark.

in a race Mark is more likely to win.

Tony is more likely than Mark, to become breathless sooner, in a short sprint.

The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-48]

Mark can run at a faster speed than Tony.

Tony is not as fit as Mark.

in a race Tony is more likely to win.

Tony is more likely than Mark, to become breathless sooner, in a short sprint.

The graph shows the pulse rate of Mark and Tony after completing a 20 minute training jog together. Mark and Tony are about the same weight and both ran the same distance.

Which statement is most likely to be TRUE? [9b-49]

Mark can run at a faster speed than Tony.

Tony is not as fit as Mark.

in a race Mark is more likely to win.

Tony is less likely than Mark, to become breathless sooner, in a short sprint.

Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-50]

heart disease is increasing due to our richer and more fatty diet

diabetes is increasing because we eat more protein in the form of meat

cases of measles have decreased mainly due to better living conditions

tubercolosis (TB) has increased due to more people smoking

lung cancer is increasing because of increased air pollution

Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-51]

heart disease is decreasing due to our more nutritious diet

diabetes is increasing because of our richer and more fatty diet

cases of measles have decreased mainly due to better living conditions

tubercolosis (TB) has increased due to more people smoking

lung cancer is increasing because of increased air pollution

Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-52]

heart disease is decreasing due to our more nutritious diet

diabetes is increasing because we eat more protein in the form of meat

cases of measles have decreased mainly due to immunisation by vaccination

tubercolosis (TB) has increased due to more people smoking

lung cancer is increasing because of increased air pollution

Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-53]

heart disease is decreasing due to our more nutritious diet

diabetes is increasing because we eat more protein in the form of meat

cases of measles have decreased mainly due to better living conditions

tubercolosis (TB) has decreased due to better living conditions and vaccination

lung cancer is increasing because of increased air pollution

Which of the following is most likely to be TRUE about disease trends over the last hundred years in the developed world? [9b-54]

heart disease is decreasing due to our more nutritious diet

diabetes is increasing because we eat more protein in the form of meat

cases of measles have decreased mainly due to better living conditions

tubercolosis (TB) has increased due to more people smoking

lung cancer is increasing because more people who can afford to smoke, do smoke

In smoking, which causes cancer? [9b-55]

tar

carbon monoxide

nicotine

paper

In smoking, which reduces the oxygen in red blood cells? [9b-56]

tar

carbon monoxide

nicotine

paper

In smoking, which substance is addictive? [9b-57]

tar

carbon monoxide

nicotine

paper

In smoking, which reduces the amount of harmful substances in the lung? [9b-58]

tar

carbon monoxide

nicotine

paper

The health and function of which system(s) is generally, and most likely improved by not smoking? [9b-59]

respiratory system and circulatory system

digestive system

circulatory system

reproductive system

skeletal system and respiratory system

The health and function of which system(s) is generally, and most likely improved by eating vegetables? [9b-60]

respiratory system

digestive system

circulatory system and respiratory system

reproductive system

skeletal system and circulatory system

The health and function of which system(s) is generally, and most likely improved by reducing fatty foods in a diet? [9b-61]

muscle system and skeletal system

digestive system

circulatory system and digestive system

reproductive system

skeletal system

The health and function of which system(s) is generally, and most likely improved by fertility treatment? [9b-62]

respiratory system

digestive system

circulatory system

reproductive system

skeletal system

The health and function of which system(s) is generally, and most likely improved by a diet containing adequate calcium? [9b-63]

respiratory system

digestive system

circulatory system

reproductive system

skeletal system

The health and function of which system(s) is generally, and most likely improved by regular exercise? [9b-64]

respiratory system and circulatory system

digestive system

circulatory systemand skeletal system

reproductive system

skeletal system

Which of the following can be caused by too much fat in the diet? [9b-65]

excess weight, deposits in arteries, raised blood pressure

constipation, poor skin quality

rickets - 'bow legged'

'skinny' and 'pot bellied'

Which of the following can be caused by too little fruit and vegetables in the diet? [9b-66]

excess weight, deposits in arteries, raised blood pressure

constipation, poor skin quality

increased blood pressure

'skinny' and 'pot bellied'

Which of the following can be caused by too much salt in the diet? [9b-67]

excess weight, deposits in arteries

constipation, poor skin quality

increased blood pressure

'skinny' and 'pot bellied'

Which of the following can be caused by too little protein in the diet? [9b-68]

excess weight, deposits in arteries, raised blood pressure

constipation, poor skin quality

increased blood pressure

'skinny' and 'pot bellied'

Which of the following is TRUE? [9c-1]

through their roots, plants absorb water and minerals from the soil

essential food from rainwater is absorbed through the leaves

in their leaves, plants store food as glucose

plants can make food without chlorophyll in the leaves

plants can make food without light shining on the leaves

Which of the following is TRUE? [9c-2]

essential food from rainwater is absorbed through the leaves

essential minerals from soil are absorbed through the roots

in their leaves, plants store food as glucose

plants can make food without chlorophyll in the leaves

plants can make food without light shining on the leaves

Which of the following is TRUE? [9c-3]

through their roots, plants absorb food from the soil

essential minerals from rainwater are absorbed through the leaves

in their leaves, plants store food as starch

plants can make food without chlorophyll in the leaves

plants can make food without light shining on the leaves

Which of the following is TRUE? [9c-4]

through their roots, plants absorb food from the soil

essential minerals from rainwater are absorbed through the leaves

in their leaves, plants store food as glucose

plants cannot make food without chlorophyll in the leaves

plants can make food without light shining on the leaves

Which of the following is TRUE? [9c-5]

through their roots, plants absorb food from the soil

essential minerals from rainwater are absorbed through the leaves

in their leaves, plants store food as glucose

plants can make food without chlorophyll in the leaves

plants cannot make food without light shining on the leaves

__(1)__ + __(2)__ ==(3)+(4)==> __(5)__ + __(6)__

The equation above can represent the process called photosynthesis.

Which of the following corresponds to water? [9c-6]

(1) liquid absorbed through the root hairs

(2) gas absorbed through leaves

(3) source of energy for the process

(4) a catalyst for the process

(5) initially stores the energy from the process

(6) gas given out from the leaves

__(1)__ + __(2)__ ==(3)+(4)==> __(5)__ + __(6)__

The equation above can represent the process called photosynthesis.

Which of the following corresponds to carbon dioxide? [9c-7]

(1) liquid absorbed through the root hairs

(2) gas absorbed through leaves

(3) source of energy for the process

(4) a catalyst for the process

(5) initially stores the energy from the process

(6) gas given out from the leaves

__(1)__ + __(2)__ ==(3)+(4)==> __(5)__ + __(6)__

The equation above can represent the process called photosynthesis.

Which of the following corresponds to sunlight? [9c-8]

(1) liquid absorbed through the root hairs

(2) gas absorbed through leaves

(3) source of energy for the process

(4) a catalyst for the process

(5) initially stores the energy from the process

(6) gas given out from the leaves

__(1)__ + __(2)__ ==(3)+(4)==> __(5)__ + __(6)__

The equation above can represent the process called photosynthesis.

Which of the following corresponds to chlorophyl? [9c-9]

(1) liquid absorbed through the root hairs

(2) gas absorbed through leaves

(3) source of energy for the process

(4) a catalyst for the process

(5) initially stores the energy from the process

(6) gas given out from the leaves

__(1)__ + __(2)__ ==(3)+(4)==> __(5)__ + __(6)__

The equation above can represent the process called photosynthesis.

Which of the following corresponds to glucose? [9c-10]

(1) liquid absorbed through the root hairs

(2) gas absorbed through leaves

(3) source of energy for the process

(4) a catalyst for the process

(5) initially stores the energy from the process

(6) gas given out from the leaves

__(1)__ + __(2)__ ==(3)+(4)==> __(5)__ + __(6)__

The equation above can represent the process called photosynthesis.

Which of the following corresponds to oxygen? [9c-11]

(1) liquid absorbed through the root hairs

(2) gas absorbed through leaves

(3) source of energy for the process

(4) a catalyst for the process

(5) initially stores the energy from the process

(6) gas given out from the leaves

Which is a simple test for carbon dioxide? [9c-12]

it gives a white precipitate when bubbled into limewater (turns cloudy or 'milky')

it re-ignites a glowing splint which bursts into flame

it gives a blue-black colour with dilute iodine solution

it forms a green solution when dissolved in alcohol

Which is a simple test for oxygen? [9c-13]

it gives a white precipitate when bubbled into limewater (turns cloudy or 'milky')

it re-ignites a glowing splint which bursts into flame

it gives a blue-black colour with dilute iodine solution

it forms a green solution when dissolved in alcohol

Which is a simple test for starch? [9c-14]

it gives a white precipitate when bubbled into limewater (turns cloudy or 'milky')

it re-ignites a glowing splint which bursts into flame

it gives a blue-black colour with dilute iodine solution

it forms a green solution when dissolved in alcohol

Which is a simple test for chlorophyl? [9c-15]

it gives a white precipitate when bubbled into limewater (turns cloudy or 'milky')

it re-ignites a glowing splint which bursts into flame

it gives a blue-black colour with dilute iodine solution

it orms a green solution when dissolved in alcohol

Name the process that plants use to make food? [9c-16]

photosynthesis

respiration

osmosis

combustion

Name the process that plants use to get energy at night? [9c-17]

photosynthesis

respiration

osmosis

combustion

Which part of the plant absorbs most of the carbon dioxide for photosynthesis? [9c-18]

part U

part W

part V

part Z

Which part of the plant absorbs most of the water for photosynthesis? [9c-19]

part U

part W

part V

part Z

Which part of the plant gives out oxygen from photosynthesis in the daytime? [9c-20]

part U

part W

part V

part Z

Which part of the plant stores the glucose from photosythesis as starch? [9c-21]

part U

part W

part V, W and Y

part Y

Which part of the plant gives out most of the carbon dioxide from respiration at night? [9c-22]

part U

part W

part V

part Z

Which of the following growing conditions for a plant will produce the least gain in biomass in one week? [9c-23]

roots in pure water, leaves above the water and covered with a black plastic sheet

roots in damp soil, leaves above the water and not covered at all

roots in pure water, leaves above the water and not covered at all

roots in damp soil, leaves above the water and covered with a black plastic sheet

roots in dry soil, leaves above the water and not covered at all

Which of the following growing conditions for a plant will produce the most gain in biomass in one week? [9c-24]

roots in pure water, leaves above the water and covered with a black plastic sheet

roots in damp soil, leaves above the water and not covered at all

roots in pure water, leaves above the water and not covered at all

roots in damp soil, leaves above the water and covered with a black plastic sheet

roots in dry soil, leaves above the water and not covered at all

Which of the following is most likely to be TRUE? [9c-25]

Plants that naturally grow in the shade often have larger leaves to increase the surface area for photosynthesis.

There is less carbon dioxide around plants at night because it has been used up in photosynthesis during the daylight hours.

Plants kept for a long time in the dark or poor light, tend to grow larger leaves or the leaves turn a darker green, to try to increase photosynthesis.

Plants only use stored starch directly at night to respire and survive.

Which of the following is most likely to be TRUE? [9c-26]

Plants that naturally grow in the shade often have small leaves to minimise heat loss.

There is more carbon dioxide around plants at night because it is not being used up in photosynthesis but given out by respiration.

Plants kept for a long time in the dark or poor light, tend to grow larger leaves or the leaves turn a darker green, to try to increase photosynthesis.

Plants only use stored starch directly at night to respire and survive.

Which of the following is most likely to be TRUE? [9c-27]

Plants that naturally grow in the shade often have small leaves to minimise heat loss.

There is less carbon dioxide around plants at night because it has been used up in photosynthesis during the daylight hours.

Plants kept for a long time in the dark or poor light, tend to become thin and paler in colour.

Plants only use stored starch directly at night to respire and survive.

Which of the following is most likely to be TRUE? [9c-28]

Plants that naturally grow in the shade often have small leaves to minimise heat loss.

There is less carbon dioxide around plants at night because it has been used up in photosynthesis during the daylight hours.

Plants kept for a long time in the dark or poor light, tend to grow larger leaves or the leaves turn a darker green, to try to increase photosynthesis.

Plants use glucose from stored starch to respire and survive.

Which is a plant cell in which photosynthesis takes place? [9c-29]

cell 2

cell 6

cell 1

cell 3

cell 4

cell 5

Which is a plant cell that absorbs water, minerals and nutrients from the soil? [9c-30]

cell 2

cell 6

cell 1

cell 3

cell 4

cell 5

In which part of a flowering plant will you find most of the cells like cell 2 containing chloroplasts? [9c-31]

stem

flowers

leaves

roots

In which part of a flowering plant will you find cells like cell 6? [9c-32]

stem

flowers

leaves

roots

Which part of plant cell 2 is a chloroplast? [9c-33]

part T

part Z

part N

part W

In which part of plant cell 2 does photosynthesis take place? [9c-34]

part T

part Z

part N

part W

Which part of plant cell 2 controls its functions? [9c-35]

part T

part Z

part N

part W

Which of the following is TRUE about plants? [9c-36]

most of the palisade cells for photosynthesis are on the upper side of leaves

one big root is more efficient than lots of liitle roots for absorbing nutrients and water

if a plant is enclosed in an air tight glass jar in sunlight, the oxygen level will fall and the carbon dioxide level will rise

if a plant is enclosed in an air tight glass jar, and the jar covered in black plastic sheeting, the oxygen level will rise and the carbon dioxide level will fall

under trees, grass will not grow as tall as in open land, because it cannot root as deeply

Which of the following is TRUE about plants? [9c-37]

most of the palisade cells for photosynthesis are on the underside of leaves

many small roots are more efficient than one big root for absorbing nutrients and water

if a plant is enclosed in an air tight glass jar in sunlight, the oxygen level will fall and the carbon dioxide level will rise

if a plant is enclosed in an air tight glass jar, and the jar covered in black plastic sheeting, the oxygen level will rise and the carbon dioxide level will fall

under trees, grass will not grow as tall as in open land, because it cannot root as deeply

Which of the following is TRUE about plants? [9c-38]

most of the palisade cells for photosynthesis are on the underside of leaves

one big root is more efficient than lots of little roots for absorbing nutrients and water

if a plant is enclosed in an air tight glass jar in sunlight, the oxygen level will rise and the carbon dioxide level will fall

if a plant is enclosed in an air tight glass jar, and the jar covered in black plastic sheeting, the oxygen level will rise and the carbon dioxide level will fall

under trees, grass will not grow as tall as in open land, because it cannot root as deeply

Which of the following is TRUE about plants? [9c-39]

most of the palisade cells for photosynthesis are on the underside of leaves

one big root is more efficient than lots of little roots for absorbing nutrients and water

if a plant is enclosed in an air tight glass jar in sunlight, the oxygen level will fall and the carbon dioxide level will rise

if a plant is enclosed in an air tight glass jar, and the jar covered in black plastic sheeting, the oxygen level will fall and the carbon dioxide level will rise

under trees, grass will not grow as tall as in open land, because it cannot root as deeply

Which of the following is TRUE about plants? [9c-40]

most of the palisade cells for photosynthesis are on the underside of leaves

one big root is more efficient than lots of little roots for absorbing nutrients and water

if a plant is enclosed in an air tight glass jar in sunlight, the oxygen level will fall and the carbon dioxide level will rise

if a plant is enclosed in an air tight glass jar, and the jar covered in black plastic sheeting, the oxygen level will rise and the carbon dioxide level will fall

under trees, grass will not grow as tall as in open land, because it cannot compete as well for light, water and nutrients

Whatever we eat is the end product of a food __(1)__ which starts with a __(2)__ that makes its own food which is eaten by a __(3)__. The original source of __(4)__ is often __(5)__ used in the process called __(6)__ in plants.

Which of the following is the missing word __(1)__? [9d-1]

chain

producer

consumer

energy

sunlight

photosynthesis

Whatever we eat is the end product of a food __(1)__ which starts with a __(2)__ that makes its own food which is eaten by a __(3)__. The original source of __(4)__ is often __(5)__ used in the process called __(6)__ in plants.

Which of the following is the missing word __(2)__? [9d-2]

chain

producer

consumer

energy

sunlight

photosynthesis

Whatever we eat is the end product of a food __(1)__ which starts with a __(2)__ that makes its own food which is eaten by a __(3)__. The original source of __(4)__ is often __(5)__ used in the process called __(6)__ in plants.

Which of the following is the missing word __(3)__? [9d-3]

chain

producer

consumer

energy

sunlight

photosynthesis

Whatever we eat is the end product of a food __(1)__ which starts with a __(2)__ that makes its own food which is eaten by a __(3)__. The original source of __(4)__ is often __(5)__ used in the process called __(6)__ in plants.

Which of the following is the missing word __(4)__? [9d-4]

chain

producer

consumer

energy

sunlight

photosynthesis

Whatever we eat is the end product of a food __(1)__ which starts with a __(2)__ that makes its own food which is eaten by a __(3)__. The original source of __(4)__ is often __(5)__ used in the process called __(6)__ in plants.

Which of the following is the missing word __(5)__? [9d-5]

chain

producer

consumer

energy

sunlight

photosynthesis

Whatever we eat is the end product of a food __(1)__ which starts with a __(2)__ that makes its own food which is eaten by a __(3)__. The original source of __(4)__ is often __(5)__ used in the process called __(6)__ in plants.

Which of the following is the missing word __(6)__? [9d-6]

chain

producer

consumer

energy

sunlight

photosynthesis

On side of a bag of an NPK fertiliser the chemical composition was listed. What is the name of the element with the chemical symbol N? [9d-7]

nitrogen

neon

sodium

neptunium

On side of a bag of an NPK fertiliser the chemical composition was listed. What is the name of the element with the chemical symbol P? [9d-8]

potassium

phosphorus

platinum

phospine

On side of a bag of an NPK fertiliser the chemical composition was listed. What is the name of the element with the chemical symbol K? [9d-9]

copper

carbon

potassium

krypton

On side of a bag of an NPK fertiliser the chemical composition was listed. What is the name of the element with the chemical symbol Cu? [9d-10]

carbon

carbohydrate

chromium

copper

On side of a bag of an NPK fertiliser the chemical composition was listed. What is the name of the element with the chemical symbol Fe? [9d-11]

iron

copper

francium

fluorine

A gardener noticed that the quality of a vegetable crop depended on the number of tall fast growing weeds near the vegetable plants. Which of the following would you NOT expect about the quality of the vegetables in amongst many weeds, compared to those growing free of weeds? [9d-12]

the roots are larger

the leaves are smaller

each plant has a smaller biomass

the leaves are pale green or yellow

the growth is slower

A gardener noticed that the quality of a vegetable crop depended on the number of tall fast growing weeds near the vegetable plants. Which of the following would you NOT expect about the quality of the vegetables in amongst many weeds, compared to those growing free of weeds? [9d-13]

the roots are thinner

the leaves are larger

each plant has a smaller biomass

the leaves are pale green or yellow

the growth is slower

A gardener noticed that the quality of a vegetable crop depended on the number of tall fast growing weeds near the vegetable plants. Which of the following would you NOT expect about the quality of the vegetables in amongst many weeds, compared to those growing free of weeds? [9d-14]

the roots are thinner

the leaves are smaller

each plant has a larger biomass

the leaves are pale green or yellow

the growth is slower

A gardener noticed that the quality of a vegetable crop depended on the number of tall fast growing weeds near the vegetable plants. Which of the following would you NOT expect about the quality of the vegetables in amongst many weeds, compared to those growing free of weeds? [9d-15]

the roots are thinner

the leaves are smaller

each plant has a smaller biomass

the leaves are dark green with no yellowness

the growth is slower

A gardener noticed that the quality of a vegetable crop depended on the number of tall fast growing weeds near the vegetable plants. Which of the following would you NOT expect about the quality of the vegetables in amongst many weeds, compared to those growing free of weeds? [9d-16]

the roots are thinner

the leaves are smaller

each plant has a smaller biomass

the leaves are pale green or yellow

the growth is faster

Which statement is NOT true about plant growth? [9d-17]

Plants need carbon from nitrates in the soil to make carbohydrates for growth.

Plants need water for photosynthesis, transport of substances in cells and growth.

It is more difficult for roots to absorb water if the soil is hard and compacted.

In a poorly lit room a plant stem will become much greener to increase the rate of photosynthesis.

The use of pesticides like DDT to protect crops (grain, fruit etc.) from insect damage is strictly controlled. Chemicals like DDT tend to be insoluble in water but soluble in fatty or oily materials. Some countries have banned their use because of harmful effects on the environment as the pesticides become part of food chains. In the food chain illustrated, the use of 'DDT like insecticides' led to a decline in birds of prey like the kestrel (often due to poor quality egg shells or or organ poisoning effects).

Which of the following is most likely NOT to be true? [9d-22]

The DDT concentration in the organism decreases up the food chain (=>).

The DDT molecules are chemically very stable.

The insects ingest the DDT if they eat any part of the plants or even absorb it by contact.

The blue-tits ingest the DDT when they eat the insects.

The DDT is not easily excreted by the animals in the food chain.

The use of pesticides like DDT to protect crops (grain, fruit etc.) from insect damage is strictly controlled. Chemicals like DDT tend to be insoluble in water but soluble in fatty or oily materials. Some countries have banned their use because of harmful effects on the environment as the pesticides become part of food chains. In the food chain illustrated, the use of 'DDT like insecticides' led to a decline in birds of prey like the kestrel (often due to poor quality egg shells or or organ poisoning effects).

Which of the following is most likely NOT to be true? [9d-23]

The DDT concentration in the organism increases up the food chain (=>).

The DDT molecules are chemically very unstable.

The insects ingest the DDT if they eat any part of the plants or even absorb it by contact.

The blue-tits ingest the DDT when they eat the insects.

The DDT is not easily excreted by the animals in the food chain.

The use of pesticides like DDT to protect crops (grain, fruit etc.) from insect damage is strictly controlled. Chemicals like DDT tend to be insoluble in water but soluble in fatty or oily materials. Some countries have banned their use because of harmful effects on the environment as the pesticides become part of food chains. In the food chain illustrated, the use of 'DDT like insecticides' led to a decline in birds of prey like the kestrel (often due to poor quality egg shells or or organ poisoning effects).

Which of the following is most likely NOT to be true? [9d-24]

The DDT concentration in the organism increases up the food chain (=>).

The DDT molecules are chemically very stable.

The insects absorb the DDT from the air around the plant.

The blue-tits ingest the DDT when they eat the insects.

The DDT is not easily excreted by the animals in the food chain.

The use of pesticides like DDT to protect crops (grain, fruit etc.) from insect damage is strictly controlled. Chemicals like DDT tend to be insoluble in water but soluble in fatty or oily materials. Some countries have banned their use because of harmful effects on the environment as the pesticides become part of food chains. In the food chain illustrated, the use of 'DDT like insecticides' led to a decline in birds of prey like the kestrel (often due to poor quality egg shells or or organ poisoning effects).

Which of the following is most likely NOT to be true? [9d-25]

The DDT concentration in the organism increases up the food chain (=>).

The DDT molecules are chemically very stable.

The insects ingest the DDT if they eat any part of the plants or even absorb it by contact.

The insects absorb the DDT from the air around the plants or insects.

The DDT is not easily excreted by the animals in the food chain.

The use of pesticides like DDT to protect crops (grain, fruit etc.) from insect damage is strictly controlled. Chemicals like DDT tend to be insoluble in water but soluble in fatty or oily materials. Some countries have banned their use because of harmful effects on the environment as the pesticides become part of food chains. In the food chain illustrated, the use of 'DDT like insecticides' led to a decline in birds of prey like the kestrel (often due to poor quality egg shells or or organ poisoning effects).

Which of the following is most likely NOT to be true? [9d-26]

The DDT concentration in the organism increases up the food chain (=>).

The DDT molecules are chemically very stable.

The insects ingest the DDT if they eat any part of the plants or even absorb it by contact.

The blue-tits ingest the DDT when they eat the insects.

The DDT is easily excreted by the animals in the food chain.

A series of experiments was done to see the effects of various minerals on the quality of plant growth. More importantly, these experiments can show the effects of a soil that is lacking (deficient) in any essential mineral.

A series of experiments was done to see the effects of various minerals on the quality of plant growth. More importantly, these experiments can show the effects of a soil that is lacking (deficient) in any essential mineral.

A series of experiments was done to see the effects of various minerals on the quality of plant growth. More importantly, these experiments can show the effects of a soil that is lacking (deficient) in any essential mineral.

A series of experiments was done to see the effects of various minerals on the quality of plant growth. More importantly, these experiments can show the effects of a soil that is lacking (deficient) in any essential mineral.